I followed this instruction Passbolt Help | Install Passbolt CE on Debian 11 (Bullseye) and got a problem. Help me to resolve it
Translation: Unable to locate package passbolt-ce-server
It looks like the script which installs the repo failed on the step before you ran
sudo apt install passbolt-ce-server. I see a lot of permission denied when you tried to add the repo, and I also see apparmor mentioned. Are you running app armor on this server? If so, you may need to look into that to make sure you can add a new repo.